import 'package:flutter/material.dart';
// import 'package:flutter_audio_manager/utils/audio_manager.dart';
import 'package:flutter_audio_manager/utils/audio_manager_v2.dart';

Future<void> main() async {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // https://sharefs.tx.kugou.com/202505222141/3e01f2f06e777949be34c40aaecbfda1/v3/1fb21f77706757bad7591312ed10baaf/yp/full/ap1000_us0_pi409_s3667659469.mp3
  // https://blog.csdn.net/Wuxiaoming135/article/details/144598314
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // TRY THIS: Try running your application with "flutter run". You'll see
        // the application has a purple toolbar. Then, without quitting the app,
        // try changing the seedColor in the colorScheme below to Colors.green
        // and then invoke "hot reload" (save your changes or press the "hot
        // reload" button in a Flutter-supported IDE, or press "r" if you used
        // the command line to start the app).
        //
        // Notice that the counter didn't reset back to zero; the application
        // state is not lost during the reload. To reset the state, use hot
        // restart instead.
        //
        // This works for code too, not just values: Most code changes can be
        // tested with just a hot reload.
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  late AudioManagerV2 _audioManager;

  @override
  void initState() {
    super.initState();
    _initAudioManager();
  }

  Future<void> _initAudioManager() async {
    _audioManager = AudioManagerV2();
    await _audioManager.init();

    // 设置播放状态变化回调
    _audioManager.onPlaybackStateChanged = (state) {
      print('播放状态: ${state.state}');
      print('当前音频: ${state.audioInfo?.title}');
      print('播放位置: ${state.position}');
      print('总时长: ${state.duration}');
      if (state.error != null) {
        print('错误信息: ${state.error}');
      }
    };

    // 使用流监听播放状态
    _audioManager.playbackStateStream.listen((state) {
      print('播放状态: ${state.state}');
      print('当前音频: ${state.audioInfo?.title}');
      print('播放位置: ${state.position}');
      print('总时长: ${state.duration}');
      if (state.error != null) {
        print('错误信息: ${state.error}');
      }
    });
  }

  @override
  void dispose() {
    _audioManager.dispose();
    super.dispose();
  }

  void _incrementCounter() {
    // AudioManager().playAudio(
    //   'http://apk-dev.oamicnet.com/FnaD1JFI9GoxFV-e3yoMVIsOhTKL',
    //   onDuration: (duration) => print('音频总时长: $duration'),
    //   onPosition: (position) => print('当前播放位置: $position'),
    //   onPlayError: (error) => print('播放错误: $error'),
    //   onComplete: () => print('播放完成'),
    // );
    // _audioManager.playAudio(
    //   'https://ting8.yymp3.com/new27/hananxu/2.mp3',
    //   onDuration: (duration) => print('音频总时长: $duration'),
    //   onPosition: (position) => print('当前播放位置: $position'),
    //   onPlayError: (error) => print('播放错误: $error'),
    //   onComplete: () => print('播放完成'),
    // );
    _audioManager.playAudio(
      'http://apk-dev.oamicnet.com/FnaD1JFI9GoxFV-e3yoMVIsOhTKL',
      onDuration: (duration) => print('音频总时长: $duration'),
      onPosition: (position) => print('当前播放位置: $position'),
      onPlayError: (error) => print('播放错误: $error'),
      onComplete: () => print('播放完成'),
    );

    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // TRY THIS: Try changing the color here to a specific color (to
        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
        // change color while the other colors stay the same.
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          //
          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
          // action in the IDE, or press "p" in the console), to see the
          // wireframe for each widget.
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            TextButton(onPressed: (){
              _audioManager.init();
            }, child: Text("init")),
            TextButton(onPressed: (){
              _audioManager.stop();
            }, child: Text("stop")),
            TextButton(onPressed: (){
              _audioManager.pause();
            }, child: Text("pause")),
            TextButton(onPressed: (){
              _audioManager.play();
            }, child: Text("play")),
            TextButton(onPressed: (){
              _audioManager.reset();
            }, child: Text("reset")),
            TextButton(onPressed: () async {
              await _audioManager.loadAudio(
                'https://sharefs.tx.kugou.com/202505222141/3e01f2f06e777949be34c40aaecbfda1/v3/1fb21f77706757bad7591312ed10baaf/yp/full/ap1000_us0_pi409_s3667659469.mp3',
                title: '歌曲标题',
                artist: '艺术家',
                album: '专辑名称',
                artworkUrl: 'https://example.com/cover.jpg',
              );
            }, child: Text("有信息的")),
            TextButton(onPressed: () async {
              AudioInfo? audioInfo = _audioManager.getCurrentAudio();
              if (audioInfo != null) {
                print('当前播放: ${audioInfo.title} ${audioInfo.artist != null ? "- ${audioInfo.artist}" : ""}');
                print('时长: ${audioInfo.duration}');
              }
            }, child: Text("获取信息")),
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}
